Hi
That's really odd. I had a play with one of the 'crate' rectangles and I
can't get it to animate at all - I even tried copy/pasting it to another
slide and giving it appear/disappear effects but nothing happens. I tried
round-tripping via HTML (which is good at stripping out corruptions) but
that didn't help either. How did you create the shapes? Have you used code
at all?
BTW, it's really cool

. I would spread the animations over several slides
though to make editing & reviewing easier.
Sorry not to be more help.
Lucy